ICL - Microlan 2 Communications Board
This 8-bit ISA expansion card from ICL is a Microlan 2 Communications Board for connecting DRS Workstations to PCs. Microlan 2 was ICL's proprietary serial type Communications System used in the DRS300 and other systems. It uses an XML2PC v1.0 device driver for Windows 3.0.
The two large chips in the upper left are a Zilog serial communications controller and a custom ICL-specific LSI logic chip. The upper-right portion of the board has it's own ground plane and seems to be mostly analogue electronics with an RS485 interface chip.
Manufacturer : ICL
Format : Expansion Board
This exhibit has a reference ID of CH46129. Please quote this reference ID in any communication with the Centre for Computing History.